MWR Racing filters

Wicky · Post by **Wicky** » Fri Feb 03, 2012 10:23 pm

Presumably it's a reusable type and would need dynoing and rejetting etc. and less restrictive 'zaust (than standard) to get the best gains. I'd like to see development dyno results before splashing out.

tony.mon · Post by **tony.mon** » Sat Feb 04, 2012 9:57 am

I'd anticipate gains on a standard bike (standard exhausts, no jet kit) as well as on more modified ones, but obviously less gains.
As regards jetting, that will certainly release more power, but should be no more necessary than putting any other performance filter on.

Broadly speaking, rejetting should be done when fitting any performance filter, for max benefit, but I know lot of people won't bother, or will at least put it off for a while.
Not much point rejetting fter adding a filter, then later putting cans and a jet kit on. Might as well wait until it's all done, then invest the dyno time, rather than get it re-dyno'd after every change.

I'll publish the results of testing, and only once we have proper data will they go up for sale.
I should be able to recommend jet sizes to match the filter, so that people can get it near enough without needing to pay for dyno time.

Flatline · Post by **Flatline** » Sat Feb 04, 2012 10:25 am

So, who else do you guys want me to contact

Tony, are we talking to the SuperHawk forum guys yet?

CB_Phil · Post by **CB_Phil** » Sat Feb 04, 2012 10:56 am

id be interested as im thinking of gettin a K&N, but if this gives better power gains & allows the fitting of the VFR tank?

Kev L · Post by **Kev L** » Sat Feb 04, 2012 1:40 pm

Flatline wrote:So, who else do you guys want me to contact

Tony, are we talking to the SuperHawk forum guys yet?

Tony posted up something on the superhawk forum yesterday mate. First response was from mik.str, who else!!!!

mik_str · Post by **mik_str** » Sat Feb 04, 2012 3:13 pm

Kev L wrote:
Flatline wrote:So, who else do you guys want me to contact

Tony, are we talking to the SuperHawk forum guys yet?
Tony posted up something on the superhawk forum yesterday mate. First response was from mik.str, who else!!!!

Be nice now

I am trying to mobilize the troops on this side of the Pond....

mik_str · Post by **mik_str** » Sat Feb 04, 2012 3:46 pm

Just wanted to inform you folks that I just info about the project of the Oz Firestorm site.... good bunch there too, hopefully a few will be interested....

lloydie · Post by **lloydie** » Sat Feb 04, 2012 5:22 pm

tony.mon wrote:
lloydiecbr wrote:My only concern would be hot air under the tank when sat it traffic as soon as you pull away it wants to stall I had the same problem on my cbr4/6 it be ok if on the move all the time
But still I'd like one

Sorry officer
The voices made me do it
That's why the plastic heat shield at the steering head end is important; it keeps the heat for the engine away from the intake snorkel.

all becomes clear

tony.mon · Post by **tony.mon** » Sat Feb 04, 2012 7:32 pm

mik_str wrote:Just wanted to inform you folks that I just info about the project of the Oz Firestorm site.... good bunch there too, hopefully a few will be interested....

Thanks, Micky.

I emailed Wilco telling him that we'd posted up an "are you interested" post here, in Superhawk, and Mik_str's also copied it over to the Oz site, too.

He replied with these additional comments:
Hi Tony

Yes , I saw it ,
First comment , I developed the same system also for the Ducatiâ€™s Monsters , Hypermotards , SportClassics and Supersports and nobody complains about hot air coming in the airbox when you stand still or rides .
On my facebook you can find fotoâ€™s and a comparo of one of these filters , on a â€˜94 900 SS std vs MC-020-90HE .
Here you see that torque and power increase quite a bit .
And isnâ€™t it so that the 900ss has the same vacuum Mikuni carbs as the VTR ?

Gr Wilco

I didn't know that the carbs are the same as 900ss, anyone got one for comparison?
And if they are the same, is the frame/linkage identical, too?

Check out the link on the MWR site to his Facebook- those dyno charts look very promising...

mik_str · Post by **mik_str** » Sat Feb 04, 2012 9:22 pm

900SS carbs were Mikuni 38s, VTR uses 48mm Keihins, although both are CV type.....

As far as the lidless set-up is concerned, it's what Roger recommends to people with Stage 1 (or more) mods. I gave it a go but my tech/tuner couldn't get it to work. Perhaps the presence of a plate to reduce turbulence would make it more easily achieveable. One thing is certain, the VTR, like most engines (notably big twins due to their unsymmetrical timing) could benefit from larger airbox volume (which removing the lid would esentially do). FWIW, SP1 and SP2 owners using the Durbahn airbox (which also uses the tank bottom as a quasi-lid) report significant increases in power (@ 8 bhp) once the fueling is adjusted.

lloydie · Post by **lloydie** » Sat Feb 04, 2012 9:36 pm

Good info about the hot air under the tank

Sorry officer
The voices made me do it

tony.mon · Post by **tony.mon** » Mon Feb 20, 2012 12:33 pm

UPDATE:

Here's the prototypes, on their way to us for testing....
Looking forward to testing these out.

lloydie · Post by **lloydie** » Mon Feb 20, 2012 1:05 pm

Very nice let's hope they work to expectations

coz I want I want I want

AMCQ46 · Post by **AMCQ46** » Mon Feb 20, 2012 1:26 pm

Tony, they look good, when is the planned Dyno run ?

agentpineapple · Post by **agentpineapple** » Mon Feb 20, 2012 2:41 pm

fingers crossed all goes well because i also want want want.....

VTR1000.ORG